2085 Luria Agar with Ampicillin 100 µg/ml (Miller’s LB Agar), Condalab

Luria Agar (Miller’s LB Agar) is a nutritionally rich medium containing Tryptone for amino acids and Yeast Extract for essential B-vitamins and trace elements. This specific version follows the Miller modification with a high Sodium Chloride (10.0 g/L) content to provide optimal osmotic conditions for many laboratory strains. The inclusion of Ampicillin at 100 µg/ml makes the medium selective, allowing only those bacteria carrying the bla (beta-lactamase) gene—typically found on plasmids like pBR322 or pUC—to survive and form colonies.

Advantages

• Ready-to-use Selection: Pre-supplemented with Ampicillin (100 µg/ml) to eliminate the risk of errors during manual antibiotic weighing and addition.
• Optimized for Cloning: Ideal for the selection of transformed E. coli cells during cloning experiments and plasmid DNA production.
• Miller Formulation: The 10 g/L salt concentration is preferred for high-density growth and improved plasmid stability in many host strains.
• Convenience & Safety: Minimizes handling of concentrated antibiotic powders, improving lab safety and ensuring a homogeneous distribution within the agar.
• Nutrient Rich: Supports rapid growth and distinct colony morphology for easy screening and picking.

Technical specifications

Available packaging options